General

  • Target

    55e1c4d76da8b185f8a68481bcbcdec3ed44f75dc04845e4a2a66ac0e5f6140e

  • Size

    620KB

  • Sample

    220725-hb5rksahcn

  • MD5

    5f685fae5cf582995387f342f60b5e23

  • SHA1

    f99aa09d283e441e42edb46ae48c58f6ac8011ce

  • SHA256

    55e1c4d76da8b185f8a68481bcbcdec3ed44f75dc04845e4a2a66ac0e5f6140e

  • SHA512

    dc3793c5699e53ccb818787b5f60d866e1a4ab78ac08a0ba0e53db6a3810dfb829f67bf372acf54dcde768d8a7ae9434a213fd7391605b65e4290df5cb5b6ce5

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3762437355-3468409815-1164039494-1000\Recovery+pbccn.txt

Ransom Note
__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server. What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://ert54nfh6hdshbw4f.nursespelk.com/BF8030705537E860 2. http://kk4dshfjn45tsnkdf34fg.tatiejava.at/BF8030705537E860 3. http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/BF8030705537E860 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/BF8030705537E860 4. Follow the instructions on the site. !!! IMPORTANT INFORMATION: !!! Your personal pages: http://ert54nfh6hdshbw4f.nursespelk.com/BF8030705537E860 http://kk4dshfjn45tsnkdf34fg.tatiejava.at/BF8030705537E860 http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/BF8030705537E860 !!! Your personal page Tor-Browser: fwgrhsao3aoml7ej.onion/BF8030705537E860 !!! Your personal identification ID: BF8030705537E860
URLs

http://ert54nfh6hdshbw4f.nursespelk.com/BF8030705537E860

http://kk4dshfjn45tsnkdf34fg.tatiejava.at/BF8030705537E860

http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/BF8030705537E860

http://fwgrhsao3aoml7ej.onion/BF8030705537E860

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2660308776-3705150086-26593515-1000\Recovery+hvefa.txt

Ransom Note
__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server. What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://ert54nfh6hdshbw4f.nursespelk.com/8FA12DEEBE8A2E6 2. http://kk4dshfjn45tsnkdf34fg.tatiejava.at/8FA12DEEBE8A2E6 3. http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/8FA12DEEBE8A2E6 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/8FA12DEEBE8A2E6 4. Follow the instructions on the site. !!! IMPORTANT INFORMATION: !!! Your personal pages: http://ert54nfh6hdshbw4f.nursespelk.com/8FA12DEEBE8A2E6 http://kk4dshfjn45tsnkdf34fg.tatiejava.at/8FA12DEEBE8A2E6 http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/8FA12DEEBE8A2E6 !!! Your personal page Tor-Browser: fwgrhsao3aoml7ej.onion/8FA12DEEBE8A2E6 !!! Your personal identification ID: 8FA12DEEBE8A2E6
URLs

http://ert54nfh6hdshbw4f.nursespelk.com/8FA12DEEBE8A2E6

http://kk4dshfjn45tsnkdf34fg.tatiejava.at/8FA12DEEBE8A2E6

http://akdfrefdkm45tf33fsdfsdf.yamenswash.com/8FA12DEEBE8A2E6

http://fwgrhsao3aoml7ej.onion/8FA12DEEBE8A2E6

Targets

    • Target

      55e1c4d76da8b185f8a68481bcbcdec3ed44f75dc04845e4a2a66ac0e5f6140e

    • Size

      620KB

    • MD5

      5f685fae5cf582995387f342f60b5e23

    • SHA1

      f99aa09d283e441e42edb46ae48c58f6ac8011ce

    • SHA256

      55e1c4d76da8b185f8a68481bcbcdec3ed44f75dc04845e4a2a66ac0e5f6140e

    • SHA512

      dc3793c5699e53ccb818787b5f60d866e1a4ab78ac08a0ba0e53db6a3810dfb829f67bf372acf54dcde768d8a7ae9434a213fd7391605b65e4290df5cb5b6ce5

    • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

      suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks